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1 | /************************************************************************** |
| 2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
| 3 | * * |
| 4 | * Author: The ALICE Off-line Project. * |
| 5 | * Contributors are mentioned in the code where appropriate. * |
| 6 | * * |
| 7 | * Permission to use, copy, modify and distribute this software and its * |
| 8 | * documentation strictly for non-commercial purposes is hereby granted * |
| 9 | * without fee, provided that the above copyright notice appears in all * |
| 10 | * copies and that both the copyright notice and this permission notice * |
| 11 | * appear in the supporting documentation. The authors make no claims * |
| 12 | * about the suitability of this software for any purpose. It is * |
| 13 | * provided "as is" without express or implied warranty. * |
| 14 | **************************************************************************/ |
| 15 | |
| 16 | /* $Id: AliTRDtrackletWord.cxx 28397 2008-09-02 09:33:00Z cblume $ */ |
| 17 | |
| 18 | //////////////////////////////////////////////////////////////////////////// |
| 19 | // // |
| 20 | // A tracklet word as from FEE // |
| 21 | // // |
| 22 | // Author: J. Klein (Jochen.Klein@cern.ch) // |
| 23 | // // |
| 24 | //////////////////////////////////////////////////////////////////////////// |
| 25 | |
| 26 | #include "AliTRDtrackletWord.h" |
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27 | #include "AliTRDgeometry.h" |
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28 | #include "AliLog.h" |
| 29 | |
| 30 | ClassImp(AliTRDtrackletWord) |
| 31 | |
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32 | AliTRDgeometry* AliTRDtrackletWord::fgGeo = new AliTRDgeometry; |
| 33 | |
| 52c19022 |
34 | AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord) : |
| 35 | AliTRDtrackletBase(), |
| 36 | fHCId(-1), |
| 37 | fTrackletWord(trackletWord) |
| 38 | { |
| 39 | |
| 40 | } |
| 41 | |
| 42 | AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord, Int_t hcid) : |
| 43 | AliTRDtrackletBase(), |
| 44 | fHCId(hcid), |
| 45 | fTrackletWord(trackletWord) |
| 46 | { |
| 47 | |
| 48 | } |
| 49 | |
| 50 | AliTRDtrackletWord::AliTRDtrackletWord(const AliTRDtrackletWord &rhs) : |
| 51 | AliTRDtrackletBase(rhs), |
| 52 | fHCId(rhs.fHCId), |
| 53 | fTrackletWord(rhs.fTrackletWord) |
| 54 | { |
| 55 | |
| 56 | } |
| 57 | |
| 58 | AliTRDtrackletWord::~AliTRDtrackletWord() |
| 59 | { |
| 60 | |
| 61 | } |
| 62 | |
| 63 | Int_t AliTRDtrackletWord::GetYbin() const { |
| 64 | // returns (signed) value of Y |
| 65 | if (fTrackletWord & 0x1000) { |
| 66 | return -((~(fTrackletWord-1)) & 0x1fff); |
| 67 | } |
| 68 | else { |
| 69 | return (fTrackletWord & 0x1fff); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | Int_t AliTRDtrackletWord::GetdY() const |
| 74 | { |
| 75 | // returns (signed) value of the deflection length |
| 76 | if (fTrackletWord & (1 << 19)) { |
| 77 | return -((~((fTrackletWord >> 13) - 1)) & 0x7f); |
| 78 | } |
| 79 | else { |
| 80 | return ((fTrackletWord >> 13) & 0x7f); |
| 81 | } |
| 82 | } |
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